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公开(公告)号：EP3988228A1
公开(公告)日：2022-04-27
申请号：EP21188931.6
申请日：2021-07-30
发明人： YANG, Yunfeng , GUAN, Shaobin
IPC分类号： B22F3/115 , B21J5/00 , B21J13/00 , B21J13/02 , B22D17/00 , B22D17/22 , C22C1/04 , C22C21/02 , C22F1/043
摘要： The present invention discloses a method for producing ultra-high-silicon aluminum alloy, which comprises the following steps: S1. Use metal spray forming technology to make the aluminum-silicon alloy melt into an aluminum-silicon alloy ingot (100) ; S2. Heat the aluminum-silicon alloy ingot to a semi-solid temperature; S3. Use die pressing to form the aluminum-silicon alloy ingot with a semi-solid temperature into an ultra-high-silicon aluminum alloy. The method of the present invention firstly uses metal spray forming to produce a silicon-aluminum alloy with a lower silicon content (e.g.: silicon content is 50%), which then goes through semi-solid forming with overflow. In this way, an appropriate amount of liquid eutectic aluminum-silicon liquid phase is pressed into an overflow groove (211), then the overall volume becomes smaller and the content of free silicon is enriched, so as to obtain an ultra-high-silicon aluminum alloy with a higher silicon content, and the silicon content can be increased to over 60%. The method of the present invention can also realize gradient or local enrichment of free silicon content through the asymmetric or partial arrangement of the overflow groove according to the functional requirements of materials.
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公开(公告)号：EP4368385A1
公开(公告)日：2024-05-15
申请号：EP23173895.6
申请日：2023-05-17
发明人： YANG, Yunfeng , YANG, Furong
CPC分类号： B32B15/01 , B32B15/012 , B32B15/015 , B32B15/017 , C23C4/123 , C23C4/08 , C23C4/137 , C23C4/18
摘要： The present invention discloses a bimetallic composite material and a preparation method thereof. The bimetals include a base metal and a spray-deposited metal, and a melting point of the spray-deposited metal is 1.1-2.0 times a melting point of the base metal. The preparation method comprises the following steps: the spray-deposited metal is melted to obtain a molten liquid; the molten liquid is atomized and spray-deposited onto a surface of the base metal under inert gas protection to obtain a composite metal billet; and the composite metal billet is rolled or stamped to obtain the bimetallic composite. In the present invention, the superheat of the molten metal of spraydeposition with a higher melting point and thermal energy brought by the latent heat of crystallization, and the impact kinetic energy from the atomized jet jointly act on the base metal to achieve the metallurgical bonding of two metals.
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